Wrench



Nov. 4 1924.

D. G. SCHROEDER WRENCH Filed Nov. 29, 1972 Patented Nov. 4, 1924.

UNITED STATES DAVID Gr. SCHROEDER, 0F MOUNTAIN LAKE, MINNESOTA.

VJBENCH.

Application filed. November 29, 1922.

To whom it may concern:

Be it known that I, DAVID G. SCHROEDER, a citizen of the United States,residing at Mountain Lake, in the county of Cottonwood and State ofMinnesota, have invented a new and useful Wrench, of which the followingis a specification.

The device forming the subject matter of this application is a wrench,and the invention aims to provide novel means whereby the movable jaw ofthe wrench may be shifted quickly to any desired position with respectto the fixed jaw, and be held in that position.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to whlch the inventionappertains.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and 1n the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes inthe precise embodiment of the invention showncan be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, a wrenchconstructed in accordance with the invention, parts being broken away,and parts appearing in section; Figure 2 is a cross section on the line2-2 of Figure 1; Figure 3 is a detail enlarged from Figure 1; Figure 4is a cross section on the line 4-4 of Figure 1; Figure 5 is a crosssection on the line 5-5 of Figure 1.

The wrench forming the subject matter of this application includes ashank 1 having a fixed jaw 2, the shank carrying a stop lug 3. The shank1 is provided in its opposite sides with longitudinal channels 4communicating with a hole 5 in the shank, the hole constituting meanswhereby the wrench may be hung up readily when not in use. On its outeredge, the shank 1 of the wrench has blunted teeth 6. A sleeve 7 ismounted for reciprocation on the shank 1 of the wrench and has an innerinclined surface 8. The wedge-shaped rider 9 is mounted forreciprocation on the shank l and is adapted to be received within thesleeve 7, in cooperating relation to the inclined inner surface 8 of thesleeve, the rider being supplied with a movable jaw 10,

-may be advanced at once.

Serial No. 603,973.

adapted to cooperate with the fixed jaw 2. The movable jaw 10 hasfingers 11, between which the shank l is received, the fingerscooperating with the shank to aid in guiding the rider 9 along theshank. In its sides, the rider 9 has recesses 12 adapted to receive thefingers of an operator, to facilitate the sliding movement of the riderand the movable aw 10. An inclined bore 14 is formed 1n the shank 1 andhas an enlarged mouth 15. A tapered groove or recess 16 is fashioned 1nthe inner edge of the rider 9 and extends longitudinally of the rider. Aretractile spr1ng 17 is provided, one end of the spring extendlng intothe bore 14 of the shank, the other end of the spring extending into therecess or groove 16 in the rider 9 at one end thereof. A securingelement 18 passes through the rider 9 and retains one end of the spring17. A securing element 19 passes through the shank 1 and retains theother end of the spring 17. The sleeve 7 is cut away at its forward end,as shown at 21, so that the pin or securing element 19 can be insertedwhen the sleeve 7 is retracted into engagement with the stop lug 3.

In practical operation, the rider 9 is advanced until the object whichis to be turned is engaged between the jaws 10 and 2. The sleeve 7 thenis advanced, the wedge-shaped rider 9 being received in the sleeve andcooperating with the inclined surface 8 of the sleeve, the sleeve beingmoved transversely, and the teeth 6 cooperating to hold both the riderand the sleeve against movement. If desired, both the sleeve 7 and therider 9 The function of the spring 17 is to draw the rider 9 backwardly,to a slight extent, thereby causing the rider to exercise a wedgingaction on the sleeve 7, and to move the sleeve 7 transversely intogripping relation with respect to the shank 1 of the wrench. When therider 9 is advanced toward the fixed jaw 1, portions of the spring 17are received in the mouth 15 of the bore 14 and in the recess or groove16 of the rider.

WVhat is claimed is A wrench comprising a shank provided with a fixedjaw, a wedge-shaped rider slidable along the shank and equipped with amovable aw cooperating with the fixed aw, a retractile spring having oneend connected to the rider, a securing element extending through theshank and engaging the other end of the spring, and a sleeve slidahle onof the spring, the recess in the rider being prolonged toward the handleend of the shank, and the recess in the shank being prolonged toward thefixed jiaw, the recess, in the shank being disposed at an acute angle.to the prolongation of the. recess in the'rider, the prolongations ofthe recesses coming into registration as the rider is advanced, toreceive the spring, as the spring is extended.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature 20 in the presence. 0t two Witnesses.

DAVID G. SCHROEDEB,

Witnesses:

D. J. SGHROEDER, G; J. BROWN.

